Locked out

[harkawy]

I am the admin of sopl-forum.2363839.n4.nabble.com
I had successfully added the following code to the site...
<override_macro name="macro_viewer_page_link">
    <a style="display:none;" href="[n.macro_viewer_page_path/]" rel="nofollow">Edit this page
    <n.visible_for_admins selector="td.footer-right a" />
</override_macro>
<override_macro name="nabble_homepage_link" dot_parameter="text" parameters="class">
    <a href="[n.nabble_homepage/]" class="[n.class/]" target="_top"><n.default. to="Nabble"><n.text/></n.default.>
    <script> $(document).ready(function() { $("td.footer-left").css("display","none"); }); </script></override_macro>

That removed the Nabble branding on the lower side of the home page.
So far.... No harm, no foul.
I then attempted to wink out the 'Permalink' text on the top of the home page.
I did an advanced search for permalink and edited the jp_header something or other and
in front of line 52 remmed out the statement with a "< ! - -"  (without the spaces)
at the end of line 56, I added the -->
As soon as I saved it and attempted to log back in, I received error code 500.

Can someone from Nabble P L E A S E unlock (repair) what I did?
PLEASE....
and also properly remove the permalink.  
If the three items need to go away that is not a problem
as our members will access the site from a protected page.

The error is...

Error 500
macroName is null
Message: macroName is null
RequestURI: /template/NamlServlet.jtp
Server: n4.nabble.com
Caused by:
fschmidt.util.servlet.JtpContextServlet$JtpServletException: url=http://sopl-forum.2363839.n4.nabble.com/template/NamlServlet.jtp?login_page  user-agent=Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36 method=GET referer=null
        at fschmidt.util.servlet.JtpContextServlet.handleException(JtpContextServlet.java:571)
        at fschmidt.util.servlet.JtpContextServlet.service2(JtpContextServlet.java:465)
        at fschmidt.util.servlet.JtpContextServlet.service(JtpContextServlet.java:332)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1360)
        at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:77)
        at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:144)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at cachingfilter.CachingFilter.doFilter(CachingFilter.java:133)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at fschmidt.util.servlet.BadBotFilter.doFilter(BadBotFilter.java:74)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at fschmidt.util.servlet.ConnectionLimitFilter.doFilter(ConnectionLimitFilter.java:94)
        at nabble.view.lib.NabbleConnectionLimitFilter.doFilter(NabbleConnectionLimitFilter.java:26)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at nabble.view.lib.NabbleErrorFilter.doFilter(NabbleErrorFilter.java:21)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1331)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:477)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
        at org.eclipse.jetty.server.Server.handle(Server.java:349)
        at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
        at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:910)
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
        at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
        at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:76)
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609)
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)
        at nabble.model.Executors$1$1.run(Executors.java:27)
        at fschmidt.util.executor.ThreadTimer$1.run(ThreadTimer.java:18)
        at fschmidt.util.executor.AbstractThreadPool$1.run(AbstractThreadPool.java:29)
        at java.lang.Thread.run(Thread.java:745)
Caused by: javax.servlet.ServletException: macroName is null
        at nabble.view.lib.Jtp.servletException(Jtp.java:584)
        at nabble.view.web.template.NamlServlet.service(NamlServlet.java:154)
        at nabble.view.web.template.NamlServlet.service(NamlServlet.java:134)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at fschmidt.util.servlet.JtpContextServlet.service2(JtpContextServlet.java:461)
        ... 38 more